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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 235 · 40 questions
TalentJR

The fast method (Count the places): Forget the points and multiply the whole numbers: 2.5 × 1.4 → 25 × 14 = 350. Count the decimal places in both numbers: 1 + 1 = 2. Put the point that many places from the right: 3.50 — then drop the 0 at the end: 3.5.

NameDateTime takenScore ___ / 40
  1. 1.0.16 × 2.7 =
  2. 2.0.09 × 2.3 =
  3. 3.3.8 × 0.11 =
  4. 4.1.3 × 3.9 =
  5. 5.4.5 × 0.32 =
  6. 6.0.73 × 2.7 =
  7. 7.0.41 × 1.6 =
  8. 8.0.32 × 2.8 =
  9. 9.5.3 × 3.9 =
  10. 10.5.9 × 2.6 =
  11. 11.3.4 × 1.6 =
  12. 12.4.6 × 0.09 =
  13. 13.1.3 × 0.31 =
  14. 14.1.7 × 0.9 =
  15. 15.4.3 × 1.4 =
  16. 16.2.1 × 0.7 =
  17. 17.0.21 × 0.9 =
  18. 18.0.8 × 0.14 =
  19. 19.5.7 × 1.3 =
  20. 20.0.19 × 1.1 =
  21. 21.1.9 × 2.2 =
  22. 22.1.2 × 3.9 =
  23. 23.2.8 × 0.09 =
  24. 24.0.66 × 0.7 =
  25. 25.8.8 × 0.17 =
  26. 26.2.4 × 2.7 =
  27. 27.3.7 × 2.1 =
  28. 28.9.1 × 2.7 =
  29. 29.0.87 × 2.8 =
  30. 30.0.52 × 2.6 =
  31. 31.0.78 × 0.6 =
  32. 32.8.3 × 3.4 =
  33. 33.0.2 × 0.36 =
  34. 34.4.3 × 0.08 =
  35. 35.0.76 × 2.2 =
  36. 36.8.4 × 0.38 =
  37. 37.5.3 × 0.35 =
  38. 38.8.4 × 3.7 =
  39. 39.9.2 × 3.3 =
  40. 40.0.63 × 2.5 =

Answer key

  1. 0.432
  2. 0.207
  3. 0.418
  4. 5.07
  5. 1.44
  6. 1.971
  7. 0.656
  8. 0.896
  9. 20.67
  10. 15.34
  11. 5.44
  12. 0.414
  13. 0.403
  14. 1.53
  15. 6.02
  16. 1.47
  17. 0.189
  18. 0.112
  19. 7.41
  20. 0.209
  21. 4.18
  22. 4.68
  23. 0.252
  24. 0.462
  25. 1.496
  26. 6.48
  27. 7.77
  28. 24.57
  29. 2.436
  30. 1.352
  31. 0.468
  32. 28.22
  33. 0.072
  34. 0.344
  35. 1.672
  36. 3.192
  37. 1.855
  38. 31.08
  39. 30.36
  40. 1.575

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